Conor McGregor Is Taunting Floyd Mayweather With His Latest Move

David Hookstead | Contributor

UFC star Conor McGregor has entered into full troll mode ahead of his boxing match with Floyd Mayweather.

McGregor posted a photo of himself training in a boxing ring, and the wall behind him has been painted with a mural showing the Irish-born fighter knocking out Mayweather, who is arguably the greatest boxer of all-time.